This Pontiac prototype is the most practical Trans Am ever

Just three Trans Am Kammback concept cars were built, and you can buy this one at Mecum's upcoming auction

The Pontiac Trans Am is an American icon. In addition to its contribution to the world of US muscle cars, it became a TV and film star in features such as Smokey and the Bandit, Knight Rider, and Hooper.

But imagine if KITT had a ‘luggage boost’ mode instead of turbo boost, or if Bandit had a little more space for cargo? This 1985 Pontiac Trans Am Kammback prototype heading to Mecum’s 2019 Kissimmee event is a vision of a more practical icon we never got.

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Like chilli and chocolate, a Trans Am and shooting brake shouldn’t really go together, but somehow it just works. Far from looking awkward and out of place, this test mule features what is known as a Kammback or Kamm tail, which despite first appearances is actually rather aerodynamic. The blunt rear of this unusual Trans Am compliments its wedged nose and boosts practicality with a larger boot.

Experimental Prototype EX4796 was displayed at motor shows and photographed for magazines but the concept never made production. During 1985, the car was prepped as a pace car for the PPG and IMSA championships, with a light bar and radio equipment.

After its contribution to motorsport that season, it was retired to Pontiac Engineering's car collection. It spent some 13 years in storage before a Pontiac dealer and collector purchased the car and commissioned Pontiac specialist Scott Tiemann to restore the rare Trans Am. Since its restoration it has been invited to the 2015 Concours d'Elegance of America and starred in a display at the 2015 Muscle Car and Corvette Nationals in Chicago.

Still powered by a 5.0-litre V8 that sends power to the rear wheels, this Trans Am Kammback prototype is one of just three ever made and comes with plenty of credentials. It heads to Mecum's Kissimmee event that runs from January 3-13, 2019 but without an estimate as yet.

How much might you need? This exact prototype was sold by Barrett-Jackson early last year for $44,000 (£34,000, €39,000), having previously also been sold by RM Sotheby's for $35,200 (£27,350, €31,200) at Amelia Island in 2010 and for $66,000 (£51,300, €58,600) in 2007.